Timeline: the San Francisco police shooting of Mario Woods

The mural for Mario Woods seen on Oakdale at Third streets on Tuesday, November 22, 2016, in San Francisco, Calif. Mario Woods, 26 years old, was shot December 2 last year by police near Fitzgerald Ave. on Third St.

The mural for Mario Woods seen on Oakdale at Third streets on...

Dec. 2, 2015: Mario Woods, a 26-year-old stabbing suspect, is fatally shot by five city police officers while walking along Third Street in the Bayview. Video of the shooting is posted on social media and goes viral.

Dec. 4: Then-Police Chief Greg Suhr holds a town hall in the Bayview where he presents a blown-up frame from the video that he says shows Woods’ arm outstretched toward an officer.

Dec. 7: Mayor Ed Lee says he directed Suhr and the Police Commission to take immediate steps to ensure “lethal force is always the last resort.” Commission President Suzy Loftus says the commission will reopen the department’s use-of-force policy.

Dec. 11: Woods family attorney John Burris announces a lawsuit and releases new video suggesting Woods did not raise the arm allegedly holding a knife before being shot.

Feb. 1: The U.S. Department of Justice’s community-policing division announces it will conduct a collaborative review of the San Francisco force.

Feb. 11: The city attorney’s office responds to Woods’ family’s lawsuit, saying officers acted lawfully in killing a man who was armed with a knife, refused to obey commands and tried to flee while intoxicated.

April 7: Luis Gongora, a 45-year-old homeless man, is fatally shot by two officers in the Mission District. Video shows the shooting unfolding in 30 seconds, which critics said defied de-escalation efforts.

April 21: A group called the “Frisco Five” begins a hunger strike in front of the Mission District police station, refusing to eat until Suhr or Lee resigns. The strike ends after 17 days.

May 19: Jessica Williams, a 29-year-old unarmed woman, is fatally shot by a sergeant while allegedly trying to flee in a stolen vehicle in the Bayview. Lee asks Suhr to resign. Toney Chaplin is named interim chief.

June 22: The Police Commission passes a use-of-force policy that puts more of an emphasis on de-escalation. The policy is sent to the officers’ union for negotiations.

July 11: A panel of retired judges assembled by District Attorney George Gascón to investigate the police force after a scandal over officers’ bigoted text messages finds that bias is a systemic problem.

Sept. 14: Lee moves toward making the district attorney’s office the lead investigator in all police shootings.

Oct. 12: The Justice Department releases its report, finding “a department with concerning deficiencies in every operational area assessed,” including use of force, bias, community policing and discipline.

Oct. 21: The police union announces negotiations regarding the use-of-force policy have stalled, in particular around the issue of shooting at moving vehicles.